Grails vs Volt: What are the differences?

What is Grails? An Open Source, full stack, web application framework for the JVM. Grails is a framework used to build web applications with the Groovy programming language. The core framework is very extensible and there are numerous plugins available that provide easy integration of add-on features.

What is Volt? A ruby web framework where your ruby runs on both server and client. Volt is a ruby web framework where your ruby code runs on both the server and the client (via opal.) The DOM automatically update as the user interacts with the page. Page state can be stored in the URL, if the user hits a URL directly, the HTML will first be rendered on the server for faster load times and easier indexing by search engines.

Grails and Volt belong to "Frameworks (Full Stack)" category of the tech stack.

"Groovy" is the primary reason why developers consider Grails over the competitors, whereas "Handlebars" was stated as the key factor in picking Volt.

Grails and Volt are both open source tools. It seems that Volt with 3.3K GitHub stars and 209 forks on GitHub has more adoption than Grails with 2.48K GitHub stars and 945 GitHub forks.